var mrR = {
    name: 'Ro9nin',
    age: 18,
    sex: 'man',
    HP: 100,
    drink: function() {
        console.log("I'm drunk");
        this.HP++
    },
    smoke: function() {
        console.log("I'm smoking");
        this.HP--
    }
}

console.log(mrR.name) 


var abc = 'like'
mrR.abc = '钟晨瑶'
console.log(mrR);

mrR['age'] = 21
console.log(mrR);

delete mrR.sex
console.log(mrR)

// mrPeng.smoke()
// mrPeng.smoke()
// mrPeng.drink()
// console.log(mrPeng.HP);